Overview
- CPCB data show Delhi’s 24‑hour AQI improved from 309 on November 3 to 291 on November 4, with IMD attributing the change to westerly winds reaching about 15 km/h.
- Despite the citywide average falling to the “poor” band, 18 monitoring stations stayed in “very poor,” led by Alipur at 377 and Anand Vihar at 366, and forecasters expect a slide back to “very poor” from Wednesday to Friday.
- The Delhi government touted stepped‑up enforcement, reporting 7,580 vehicular‑pollution challans in 24 hours, mechanical sweeping of 2,300 km of roads, and the deployment of 390 anti‑smog guns, 280 sprinklers and 76 sweepers.
- CAQM flagged a sharp drop in stubble‑burning detections this season—Punjab 2,518 versus 4,132 and Haryana 145 versus 857 year‑on‑year for Sept 15–Nov 3—and said BS‑III and older non‑Delhi goods vehicles are restricted from entering the city, as the Supreme Court seeks a data‑backed action plan.
- CREA’s October snapshot ranked Delhi sixth nationwide with PM2.5 at 107 µg/m³ while Dharuhera led at 123 µg/m³, and it estimated stubble contributed under 6% to Delhi’s PM2.5, pointing to vehicles, industry and construction as dominant sources.